[web-bluetooth] Pull Request: Explain how to preview the built spec in CONTRIBUTING.md.

jyasskin has just submitted a new pull request for 
https://github.com/WebBluetoothCG/web-bluetooth:

== Explain how to preview the built spec in CONTRIBUTING.md. ==
Preview at 
https://api.csswg.org/bikeshed/?url=https://github.com/jyasskin/web-bluetooth-1/raw/block-blacklisted-gatt-children/index.bs#getgattchildren

Fixes #216.

See https://github.com/WebBluetoothCG/web-bluetooth/pull/263

Received on Wednesday, 3 August 2016 23:13:43 UTC